Retrieves a #GdkCursor pointer for the @device currently set on the
specified #GdkWindow, or %NULL. If the return value is %NULL then
there is no custom cursor set on the specified window, and it is
using the cursor for its parent window.
Return: a #GdkCursor, or %NULL. The
returned object is owned by the #GdkWindow and should not be
unreferenced directly. Use gdk_window_set_cursor() to unset the
cursor of the window
Retrieves a #GdkCursor pointer for the @device currently set on the specified #GdkWindow, or %NULL. If the return value is %NULL then there is no custom cursor set on the specified window, and it is using the cursor for its parent window.